Horizontal roller type flour mill

Abstract

The utility model discloses a horizontal roller type flour mill, which comprises a rack, the barrel is rotationally mounted on the rack, a grinding cavity is formed in the barrel, a feeding end cover is arranged at one end of the barrel, a discharging end cover is arranged at the other end of the barrel, a feeding port is formed in the feeding end cover, a discharging port is formed in the discharging end cover, and a grinding lining seat is arranged on the peripheral wall of the grinding cavity; the grinding head main shaft extends into the powder grinding cavity, a grinding roller is mounted at one end, extending into the powder grinding cavity, of the grinding head main shaft, and the grinding roller is matched with the material grinding lining seat to be used for grinding materials; the powder selecting rotating wheel is rotationally installed in the powder grinding cavity, covers the discharging opening and is provided with impellers arranged in a surrounding mode; the first driving mechanism is used for driving the barrel to rotate; the second driving mechanism is used for driving the grinding roller to rotate. By adopting the barrel body, the grinding head main shaft, the powder selecting rotating wheel and the corresponding driving mechanism, the grinding efficiency is obviously improved, and the particle size distribution of powder is narrow.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnesium aluminium smelting raw material processing technical field, in particular, relate to a horizontal roller type flour mill. BACKGROUND

[0002] In order to solve the problem of a large amount of mine solid waste of mine exploitation site of magnesium-containing ore, and the problem that a large amount of powder (particle size <5mm) in the crushing plant cannot be calcined by low-price rotary kiln, a multi-stage composite fluidized calcination is carried out by using fluidized roasting furnace. In order to ensure the consistency of the overall quality index of calcined powder, dolomite mine fragments need to be ground, but the traditional flour mill has general grinding efficiency, and the particle size distribution of the ground powder is wide, which is not conducive to the consistency of the fluidized roasting effect, and reduces the stability of the calcination quality. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a horizontal roller type flour mill.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A horizontal roller type flour mill, comprising: a rack; a barrel body rotatably installed on the rack, an internal grinding chamber is provided in the barrel body, one end of the barrel body is provided with an inlet end cover, the other end of the barrel body is provided with an outlet end cover, an inlet is provided on the inlet end cover, an outlet is provided on the outlet end cover, and a grinding material lining seat is provided on the peripheral wall of the grinding chamber; a grinding head spindle extends into the grinding chamber, a grinding roller is installed at one end of the grinding head spindle extending into the grinding chamber, and the grinding roller is matched with the grinding material lining seat to grind the material; a powder selection runner is rotatably installed in the grinding chamber and covers the outlet, and the powder selection runner is provided with impellers arranged around; a first driving mechanism is used to drive the barrel body to rotate; and a second driving mechanism is used to drive the grinding roller to rotate.

[0006] Further, a moving frame is further included, and the moving frame is slidably installed on the rack to enable the grinding head spindle and the grinding roller to enter and exit the grinding chamber from the inlet, and the grinding head spindle is installed on the moving frame.

[0007] Further, the moving frame is provided with a baffle capable of being attached to the outer side surface of the inlet end cover, and the baffle is provided with an avoidance hole through which the grinding head spindle passes.

[0008] Further, a shaft frame is further included, the grinding head spindle is installed on the shaft frame, the shaft frame is connected with the moving frame, and the second driving mechanism is installed on the shaft frame.

[0009] Further, a swing arm is hinged to the moving frame, and one end of the swing arm is hinged to the shaft frame.

[0010] Further, an internally recessed circular arc groove is arranged in the inner ring of the grinding material lining seat, and a circular arc protrusion matched with the circular arc groove is arranged on the outer ring of the grinding roller.

[0011] Further, the machine frame is provided with a discharge element outside the discharge end cover, the discharge element covers the outside of the discharge port, and the discharge element forms a discharge channel communicated with the discharge port.

[0012] Further, the powder selection runner is fixedly connected with a powder selection shaft, and the powder selection shaft is rotatably installed on the discharge element.

[0013] Further, the outer periphery of the barrel is provided with a gear ring, the first driving mechanism is a motor fixedly installed on the machine frame, and the output shaft of the motor is connected with a driving gear engaged with the gear ring.

[0014] Further, the machine frame is rotatably installed with a supporting barrel.

[0015] The utility model has the advantages of the following beneficial effects:

[0016] The utility model provides a horizontal roller type flour mill, through adopting barrel, grinding head main shaft, powder selection runner and corresponding driving mechanism, the powder efficiency and powder particle size distribution narrow are improved obviously. When grinding, not only the grinding roller rotates, but also the barrel and the abrasive lining base rotate, so that the material is fully ground in the grinding chamber, the grinding effect is enhanced, the powder efficiency is improved obviously, the design of the powder selection runner selects the discharge through the impeller arranged in a ring, ensures the uniformity of the discharge particle size, reduces the problem of the wide powder particle size distribution of the traditional flour mill, solves the consistency of the control parameter of the fluidized roasting, improves the stability of the calcination quality, also relieves the last tail gas dust removal pressure of the fluidized roasting system, the powder particle size distribution is even, each particle is evenly heated in the fluidized roasting process, avoids the local overburning or underburning phenomenon, improves the stability of the calcination quality, the abrasive lining base effectively protects the barrel, reduces the equipment wear and tear, prolongs the service life of the equipment, reduces the maintenance cost.

[0017] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings that form a part of this application are intended to provide a further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the structure schematic diagram of grinding head main shaft and axle support;

[0021] Figure 3 is a structural schematic diagram of a powder selection runner;

[0022] Figure 4 is a structural schematic diagram of a barrel.

[0023] Legend:

[0024] frame 100, discharge piece 110, discharge channel 111, supporting wheel 120, sliding rail 130;

[0025] barrel 200, grinding chamber 210, feed end cover 220, feed port 221, discharge end cover 230, discharge port 231, abrasive lining 240, circular arc groove 241, gear ring 250;

[0026] grinding head spindle 300, grinding roller 310, circular arc protrusion 311, rotating mounting bracket 320, driven gear 321;

[0027] powder selection runner 400, impeller 410, powder selection shaft 420, transmission wheel 421, end plate 430, material passing port 431;

[0028] first driving mechanism 500, driving gear 510;

[0029] second driving mechanism 600;

[0030] axle bracket 700, hinged lug 710;

[0031] moving bracket 800, baffle 810, avoiding hole 811, swing arm 820, roller 830. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are merely exemplary and are not intended to limit the present application.

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0035] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0036] Please refer to Figure 1 and Figure 4 In one preferred embodiment of the present application, a horizontal roller type flour mill comprises a rack 100, a barrel 200, a grinding head spindle 300 and a powder selecting runner 400, a first driving mechanism 500 and a second driving mechanism 600.

[0037] The barrel 200 is rotatably installed on the rack 100, and the barrel 200 is internally provided with a grinding cavity 210. One end of the barrel 200 is provided with a feeding end cover 220, and the other end is provided with a discharging end cover 230. The feeding end cover 220 is provided with a feeding port 221, and the discharging end cover 230 is provided with a discharging port 231. The grinding cavity 210 is provided with a grinding material support 240. The grinding head spindle 300 extends into the grinding cavity 210, and one end of the grinding head spindle 300 extending into the grinding cavity 210 is provided with a grinding roller 310. The grinding roller 310 cooperates with the grinding material support 240 to grind the material. The powder selecting runner 400 is rotatably installed in the grinding cavity 210 and covers the discharging port 231. The powder selecting runner 400 is provided with a ring-shaped impeller 410. The first driving mechanism 500 is used to drive the barrel 200 to rotate, and the second driving mechanism 600 is used to drive the grinding roller 310 to rotate. It can be understood that the device also includes a third driving mechanism for driving the powder selecting runner 400 to rotate. The particle size screening can be adjusted by adjusting the rotating speed of the powder selecting runner 400. The faster the rotating speed, the smaller the particle size.

[0038] The utility model provides a kind of horizontal roller type flour mill, by adopting cylinder 200, grinding head main shaft 300, powder selecting runner 400 and corresponding driving mechanism, significantly improve the grinding efficiency and powder particle size distribution narrow.The abrasive material, not only abrasive roller 310 rotates, cylinder 200 and abrasive material backing 240 also rotate, so that material is in the material grinding cavity 210, material is subjected to sufficient grinding effect, enhance the grinding effect, significantly improve the grinding efficiency;And when material particle is larger, the rotational speed of abrasive roller 310 and the rotational speed of cylinder 200 have speed difference, will form shear crushing, guarantee the crushing effect.The design of powder selecting runner 400, by the impeller 410 of surrounding arrangement to the discharge carries out screening, ensure the uniformity of discharge particle size, reduce the problem of traditional flour mill powder particle size distribution too wide, solve the consistency of control parameter of fluidized roasting, improve the stability of calcination quality, also reduce the last tail gas dust removal pressure of fluidized roasting system.Particle size distribution of powder is even, each particle is heated evenly in fluidized roasting process, avoid local overburning or underburning phenomenon, improve the stability of calcination quality;Abrasive material backing 240 effectively protects cylinder 200, reduces equipment wear, prolongs equipment service life, reduces maintenance cost.It can be understood that abrasive material backing 240 can be detachably installed in cylinder 200, to facilitate subsequent disassembly and replacement.

[0039] With reference to Figure 1 In some embodiments of the utility model, it further includes a moving frame 800, which is slidingly installed on the rack 100 to enable the grinding head main shaft 300 and the abrasive roller 310 to enter and exit the grinding cavity 210 from the feed inlet 221. The grinding head main shaft 300 is installed on the moving frame 800, and the profile of the grinding head main shaft 300 and the abrasive roller 310 is smaller than the feed inlet 221. The material can enter the grinding cavity 210 from the gap, so that the overall structure is more compact. Specifically, the rack 100 is provided with sliding rails 130, and the moving frame 800 is provided at the bottom with rollers 830 that are rollingly installed on the sliding rails 130, so as to facilitate the movement of the moving frame 800.

[0040] Of course, in some other embodiments, the feed end cover 220 can be provided with a feed inlet 221 and an inlet and outlet. The inlet and outlet are specially used for the grinding head main shaft 300 and the abrasive roller 310 to enter and exit, and the feed inlet 221 is specially used for feeding.

[0041] With reference to Figure 1 In further embodiments of the utility model, the moving frame 800 is provided with a baffle 810 that can be attached to the outer side of the feed end cover 220. The baffle 810 is provided with a clearance hole 811 through which the grinding head main shaft 300 passes. The baffle 810 can block part of the feed inlet 221, so as to avoid the excessive exposure of the feed inlet 221 during grinding and cause the material to spread out from the feed inlet 221.

[0042] With reference to Figure 1 And Figure 2In further embodiments of the present application, the shaft support 700 is further provided, the grinding head spindle 300 is installed on the shaft support 700, the shaft support 700 is connected with the moving frame 800, and the second driving mechanism 600 is installed on the shaft support 700. Specifically, the grinding head spindle 300 is sleeved with a rotating mounting frame 320 at one end of the grinding head spindle 300 extending into the grinding cavity 210, a bearing is arranged between the rotating mounting frame 320 and the grinding head spindle 300, the grinding roller 310 is sleeved on the outer periphery of the rotating mounting frame 320, and the grinding roller 310 is detachably connected with the rotating mounting frame 320, so as to facilitate replacement after wear. The grinding head spindle 300 is fixedly connected with the shaft support 700. The rotating mounting frame 320 is provided with a driven gear 321, the second driving mechanism 600 is a motor, an output shaft of the motor is provided with an output gear engaged with the driven gear 321, so as to drive the grinding roller 310 to rotate. It can be understood that the output shaft of the motor and the output gear are further provided with a speed reducer to realize transmission connection, so as to reduce the rotating speed of the output shaft of the motor.

[0043] Of course, in other embodiments, the grinding head spindle 300 can be rotatably installed on the shaft support 700, and the grinding roller 310 is fixedly connected with the grinding head spindle 300 to realize synchronous rotation.

[0044] Referring to Figure 1 In further embodiments of the present application, the moving frame 800 is hingedly provided with a swing arm 820, the swing arm 820 is hingedly connected with the moving frame 800 at the middle portion, and one end of the swing arm 820 is hingedly connected with the shaft support 700, so that the height of the shaft support 700, the grinding head spindle 300 and the grinding roller 310 can be controlled by swinging the swing arm 820. When grinding, the grinding roller 310 can be pressed down to have sufficient rolling force, and the grinding efficiency is improved. When it is needed to separate from the grinding cavity 210, the grinding roller 310 can be lifted up and then separated from the grinding cavity 210. Specifically, as shown in FIG. Figure 1 and 2As shown, the bottom of the shaft frame 700 is provided with a hinged lug 710 for the swing arm 820 to hinge, the moving frame 800 is provided with a pressurizing cylinder 840 and a maintenance cylinder 850, the pressurizing cylinder 840 is used to drive the grinding roller 310 of the shaft frame 700 to move towards the abrasive lining 240 to press the material, the moving path of the telescopic shaft of the pressurizing cylinder 840 corresponds to the end of the swing arm 820 away from the shaft frame 700, so that when pressurization is needed, the telescopic shaft of the pressurizing cylinder 840 can move upwards to push the swing arm 820 to swing and finally drive the grinding roller 310 to move towards the abrasive lining 240 to press the material, so that there is enough rolling force to improve the grinding efficiency and effect. The maintenance cylinder 850 drives the grinding roller 310 of the shaft frame 700 to move away from the abrasive lining 240, specifically, one end of the maintenance cylinder 850 is hinged to the moving frame 800, and the other end is hinged to the hinged lug 710, so that the grinding roller 310 can be pushed up to separate from the abrasive lining 240, so that the grinding roller 310 can be conveniently withdrawn from the grinding chamber 210. In addition, when the maintenance cylinder 850 is in the retracted state, it can limit the pressurizing stroke of the pressurizing cylinder 840 to push the grinding roller 310 down, so as to avoid the contact between the grinding roller 310 and the abrasive lining 240. The grinding roller 310 has a 10mm gap before the material and the abrasive lining 240, otherwise the material friction between the two will be damaged and the product will be contaminated.

[0045] Referring to Figure 1 In further embodiments of the present application, the inner ring of the abrasive lining 240 is provided with a recessed circular arc groove 241, and the outer ring of the grinding roller 310 is provided with a circular arc protrusion 311 matched with the circular arc groove 241, so as to increase the grinding area and the material will automatically gather at the bottom of the circular arc groove 241 and be ground by the grinding roller 310, thereby improving the grinding efficiency.

[0046] Referring to Figure 1 In further embodiments of the present application, the rack 100 is provided with a discharge member 110 located outside the discharge end cover 230, the discharge member 110 is arranged outside the discharge port 231, the discharge member 110 forms a discharge channel 111 in communication with the discharge port 231, and the discharge channel 111 can be connected to a negative pressure suction device, so as to form a negative pressure in the grinding chamber 210, so that the powder flows from the discharge port 231 to the discharge channel 111 along with the airflow, and flows into the subsequent device.

[0047] Referring to Figure 3In further embodiments of the present application, the powder selection rotating wheel 400 is fixedly connected with a powder selection shaft 420, the powder selection shaft 420 is rotatably installed on the discharging member 110, the center of the discharging end cover 230 is provided with a central hole for the powder selection shaft 420 to pass through, the powder selection shaft 420 extends out of the discharging member 110 at an end away from the powder grinding cavity 210 and is connected with a transmission wheel 421, the third driving mechanism can be a motor, the output shaft of the motor is connected with a driving wheel, the driving wheel and the transmission wheel 421 can be driven through a material strip or a transmission belt, so as to drive the powder selection rotating wheel 400 to rotate. Specifically, the front and rear ends of the impeller are provided with end plates to realize the connection of all the impellers and ensure the structural strength of the impeller. The end plate 430 facing the discharge port 231 is provided with a material passing port 431 corresponding to the discharge port 231, so that the powder passes through.

[0048] With reference to Figure 1 In further embodiments of the present application, the outer periphery of the cylinder body 200 is provided with a gear ring 250, the first driving mechanism 500 is a motor fixedly installed on the rack 100, the output shaft of the motor is connected with a driving gear 510 engaged with the gear ring 250, so as to drive the cylinder body 200 to rotate.

[0049] With reference to Figure 1 In further embodiments of the present application, the rack 100 is rotatably installed with a supporting wheel 120 supporting the cylinder body 200, so as to reduce the rotating friction of the cylinder body 200.

[0050] The above is only the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A horizontal roller mill, characterized in that, The utility model relates to a kind of powder mill, including: Rack (100); Barrel (200), rotation is installed in rack (100), inside is equipped with mill cavity (210), one end is equipped with feed end cover (220), the other end is equipped with discharge end cover (230), the feed end cover (220) is equipped with feed port (221), the discharge end cover (230) is equipped with discharge port (231), the mill cavity (210) peripheral wall is equipped with abrasive lining (240); Grinding head spindle (300), it enters mill cavity (210), and the end of entering mill cavity (210) is equipped with grinding roller (310), the grinding roller (310) is used for grinding material with abrasive lining (240) cooperation;Select powder runner (400), rotation is installed in mill cavity (210) and covers discharge port (231), is equipped with encircling impeller (410); First drive mechanism (500), for driving barrel (200) rotation; Second drive mechanism (600), for driving grinding roller (310) rotation.

2. The horizontal roller mill according to claim 1, characterized in that, Also including moving frame (800), sliding installation is in rack (100), so that grinding head spindle (300) and grinding roller (310) can enter and exit mill cavity (210) from feed port (221), the grinding head spindle (300) is installed in moving frame (800).

3. The horizontal roller mill according to claim 2, characterized in that, The moving frame (800) is equipped with the baffle (810) that can be attached with the outside of feed end cover (220), the baffle (810) is equipped with the hole (811) that avoids for grinding head spindle (300) to pass through.

4. The horizontal roller mill according to claim 3, characterized in that, Also including shaft frame (700), the grinding head spindle (300) is installed in shaft frame (700), the shaft frame (700) is connected with moving frame (800), and the second drive mechanism (600) is installed in shaft frame (700).

5. The horizontal roller mill according to claim 4, wherein The moving frame (800) is hinged with swing arm (820), and one end of the swing arm (820) is hinged with shaft frame (700);The moving frame (800) is equipped with pressurizing cylinder (840) and maintenance cylinder (850), the pressurizing cylinder (840) is used to drive the grinding roller (310) of shaft frame (700) to move towards abrasive lining (240) to pressurize material;The maintenance cylinder (850) drives the grinding roller (310) of shaft frame (700) to move away from abrasive lining (240).

6. The horizontal roller mill according to claim 5, wherein The inner ring of the abrasive lining (240) is equipped with the circular arc groove (241) of recess, and the outer ring of the grinding roller (310) is equipped with the circular arc protrusion (311) that is adapted to the circular arc groove (241).

7. The horizontal roller mill according to claim 1, wherein The rack (100) is equipped with discharge part (110) located on the outside of discharge end cover (230), the discharge part (110) is covered outside discharge port (231), and the discharge part (110) is formed with discharge passage (111) that is communicated with discharge port (231).

8. The horizontal roller mill according to claim 7, characterized in that The select powder runner (400) is fixedly connected with select powder shaft (420) in center, and the select powder shaft (420) rotation is installed in discharge part (110).

9. The horizontal roller mill according to claim 1, wherein The cylinder (200) is provided with a gear ring on the outer periphery, the first driving mechanism (500) is a motor fixedly installed on the frame (100), and the output shaft of the motor is connected with a driving gear (510) engaged with the gear ring.

10. The horizontal roller mill according to claim 1, characterized in that, The frame (100) is rotatably installed with a supporting wheel (120) supporting the cylinder (200).

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